v0.16.1
v0.16.1: optional fs overlay passthrough + mcp.callTool bridge - --fs-passthrough: optional fallthrough from per-session overlay to the real read-only fs (e.g. bundled /opt/languages) instead of ENOENT - bridge mcp.callTool from the current-thread isolate to a captured runtime Handle - docs: fix mcp-tools.md TOC anchor (Heap+fs mode)